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Finding the Fourth Proportional to 186,070.56, 279,149.40 and 61,411.44

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Solution

The fourth proportional to 186,070.56, 279,149.40 and 61,411.44 is: 92,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,070.56 : 279,149.40 = 61,411.44 : x
  2. Step 2: Convert to fraction form
    186,070.56/279,149.40 = 61,411.44/x
  3. Step 3: Cross multiply
    186,070.56x = 279,149.40 × 61,411.44
  4. Step 4: Simplify right side
    186,070.56x = 17,142,966,629.14
  5. Step 5: Solve for x
    x = 17,142,966,629.14/186,070.56
  6. Step 6: Final answer
    x = 92,131.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.